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Fernandez HH, Weintraub D, Macklin E, Litvan I, Schwarzschild MA, Eberling J, Videnovic A, Kenney CJ. Safety, tolerability, and preliminary efficacy of SYN120, a dual 5-HT6/5-HT2A antagonist, for the treatment of Parkinson disease dementia: A randomized, controlled, proof-of-concept trial. Parkinsonism Relat Disord 2023; 114:105511. [PMID: 37532622 DOI: 10.1016/j.parkreldis.2023.105511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 06/25/2023] [Accepted: 06/28/2023] [Indexed: 08/04/2023]
Abstract
BACKGROUND SYN120 is a dual serotonin receptor (5-HT6/5-HT2A) antagonist hypothesized to improve cognition and psychiatric symptoms. OBJECTIVES We evaluated the safety, tolerability, and efficacy of SYN120 in patients with Parkinson disease dementia (PDD). METHODS In a multicenter, double-blind, parallel-group, 16-week phase 2a proof-of-concept trial in PDD with concomitant cholinesterase inhibitor use, eligible patients were randomized to oral SYN120 (100 mg/day) or placebo. Adverse events (AEs), Unified Parkinson's Disease Rating Scale (UPDRS) scores, and discontinuations assessed safety and tolerability. The primary and key secondary efficacy measures were the Cognitive Drug Research (CDR) computerized assessment system Continuity of Attention and Quality of Episodic Memory scores. Other efficacy measures were: Alzheimer's Disease Assessment Scale-Cognitive Subscale (ADAS-Cog), Alzheimer's Disease Cooperative Study-Clinician's Global Impression of Change (ADCS-CGIC), Brief Penn Parkinson's Daily Activity Questionnaire-15 (PDAQ-15), Scales for Outcomes in Parkinson's Disease-Sleep Scale (SCOPA-Sleep), and Neuropsychiatric Inventory (NPI). RESULTS Eighty-two patients were randomized to SYN120 (N = 38) or placebo (N = 44), AEs occurred in 74% and 77% of patients, and treatment discontinuation in both groups was 16%. Nausea and vomiting were more frequent, and motor symptoms (UPDRS) worsened in the SYN120 group. At week 16, the SYN120 and placebo groups did not differ significantly for any cognitive assessment. Cognitive activities of daily living (PDAQ-15) and the NPI-Apathy/Indifference scores improved nominally in the SYN120 group compared with placebo (unadjusted p = 0.029 and 0.028). CONCLUSIONS SYN120 was adequately tolerated, mild worsening of motor symptoms was noted and it did not improve cognition in PDD patients. Its potential benefits for cognitive activities of daily living and apathy warrant further study. REGISTRATION Clinicaltrials.gov as NCT02258152.
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Affiliation(s)
| | - Daniel Weintraub
- University of Pennsylvania School of Medicine, Departments of Neurology and Psychiatry, USA
| | - Eric Macklin
- Massachusetts General Hospital/Harvard Medical School, USA
| | - Irene Litvan
- University of California San Diego, Department of Neurology, USA
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TCB-2, a 5-hydroxytryptamine 2A receptor agonist, disrupts prepulse inhibition in the ventral pallidum and nucleus accumbens. Behav Brain Res 2023; 437:114127. [PMID: 36174843 DOI: 10.1016/j.bbr.2022.114127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 09/20/2022] [Accepted: 09/23/2022] [Indexed: 11/21/2022]
Abstract
The 5-hydroxytryptamine 2A (5-HT2A) receptor plays an important role in schizophrenia. The 5-HT2A receptor is also involved in the regulation of prepulse inhibition (PPI) in rodents. The aim of this study was to determine whether selective 5-HT2A receptor agonizts or antagonists may alter PPI in rats and to identify the critical brain regions in which the activity of 5-HT2A receptors regulates PPI. The results showed that infusion of the 5-HT2A receptor agonist TCB-2 into the lateral ventricle disrupted PPI, but the 5-HT2A receptor antagonist M100907 had no such effect. In addition, local infusion of TCB-2 into the nucleus accumbens and ventral pallidum disrupted PPI, whereas the same manipulation in the medial prefrontal cortex, ventral hippocampus, and ventral tegmental area did not disrupt PPI. In conclusion, agonism of 5-HT2A receptors in the ventral pallidum and nucleus accumbens can disrupt PPI. The ventral pallidum and nucleus accumbens are critical brain regions responsible for the regulation of PPI by serotonin. These findings contribute to the extensive exploration of the molecular and neural mechanisms underlying the regulatory effect of 5-HT2A receptor activity on PPI, especially the neural circuits modulated by 5-HT2A receptor activity.
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Juza R, Musilek K, Mezeiova E, Soukup O, Korabecny J. Recent advances in dopamine D 2 receptor ligands in the treatment of neuropsychiatric disorders. Med Res Rev 2023; 43:55-211. [PMID: 36111795 DOI: 10.1002/med.21923] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 07/29/2022] [Accepted: 08/09/2022] [Indexed: 02/04/2023]
Abstract
Dopamine is a biologically active amine synthesized in the central and peripheral nervous system. This biogenic monoamine acts by activating five types of dopamine receptors (D1-5 Rs), which belong to the G protein-coupled receptor family. Antagonists and partial agonists of D2 Rs are used to treat schizophrenia, Parkinson's disease, depression, and anxiety. The typical pharmacophore with high D2 R affinity comprises four main areas, namely aromatic moiety, cyclic amine, central linker and aromatic/heteroaromatic lipophilic fragment. From the literature reviewed herein, we can conclude that 4-(2,3-dichlorophenyl), 4-(2-methoxyphenyl)-, 4-(benzo[b]thiophen-4-yl)-1-substituted piperazine, and 4-(6-fluorobenzo[d]isoxazol-3-yl)piperidine moieties are critical for high D2 R affinity. Four to six atoms chains are optimal for D2 R affinity with 4-butoxyl as the most pronounced one. The bicyclic aromatic/heteroaromatic systems are most frequently occurring as lipophilic appendages to retain high D2 R affinity. In this review, we provide a thorough overview of the therapeutic potential of D2 R modulators in the treatment of the aforementioned disorders. In addition, this review summarizes current knowledge about these diseases, with a focus on the dopaminergic pathway underlying these pathologies. Major attention is paid to the structure, function, and pharmacology of novel D2 R ligands, which have been developed in the last decade (2010-2021), and belong to the 1,4-disubstituted aromatic cyclic amine group. Due to the abundance of data, allosteric D2 R ligands and D2 R modulators from patents are not discussed in this review.
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Affiliation(s)
- Radomir Juza
- Experimental Neurobiology, National Institute of Mental Health, Klecany, Czech Republic.,Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, Czech Republic
| | - Kamil Musilek
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, Czech Republic.,Biomedical Research Centre, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
| | - Eva Mezeiova
- Experimental Neurobiology, National Institute of Mental Health, Klecany, Czech Republic.,Biomedical Research Centre, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
| | - Ondrej Soukup
- Biomedical Research Centre, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
| | - Jan Korabecny
- Experimental Neurobiology, National Institute of Mental Health, Klecany, Czech Republic.,Biomedical Research Centre, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
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4
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The 5-HT6R agonist E-6837 and the antagonist SB-271046 reverse the psychotic-like behaviors induced by ketamine. Behav Pharmacol 2022; 33:249-254. [DOI: 10.1097/fbp.0000000000000669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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5
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Zajdel P, Grychowska K, Mogilski S, Kurczab R, Satała G, Bugno R, Kos T, Gołębiowska J, Malikowska-Racia N, Nikiforuk A, Chaumont-Dubel S, Bantreil X, Pawłowski M, Martinez J, Subra G, Lamaty F, Marin P, Bojarski AJ, Popik P. Structure-Based Design and Optimization of FPPQ, a Dual-Acting 5-HT 3 and 5-HT 6 Receptor Antagonist with Antipsychotic and Procognitive Properties. J Med Chem 2021; 64:13279-13298. [PMID: 34467765 PMCID: PMC8474115 DOI: 10.1021/acs.jmedchem.1c00224] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
In line with recent clinical trials demonstrating that ondansetron, a 5-HT3 receptor (5-HT3R) antagonist, ameliorates cognitive deficits of schizophrenia and the known procognitive effects of 5-HT6 receptor (5-HT6R) antagonists, we applied the hybridization strategy to design dual-acting 5-HT3/5-HT6R antagonists. We identified the first-in-class compound FPPQ, which behaves as a 5-HT3R antagonist and a neutral antagonist 5-HT6R of the Gs pathway. FPPQ shows selectivity over 87 targets and decent brain penetration. Likewise, FPPQ inhibits phencyclidine (PCP)-induced hyperactivity and displays procognitive properties in the novel object recognition task. In contrast to FPPQ, neither 5-HT6R inverse agonist SB399885 nor neutral 5-HT6R antagonist CPPQ reversed (PCP)-induced hyperactivity. Thus, combination of 5-HT3R antagonism and 5-HT6R antagonism, exemplified by FPPQ, contributes to alleviating the positive-like symptoms. Present findings reveal critical structural features useful in a rational polypharmacological approach to target 5-HT3/5-HT6 receptors and encourage further studies on dual-acting 5-HT3/5-HT6R antagonists for the treatment of psychiatric disorders.
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Affiliation(s)
- Paweł Zajdel
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Str., 30-688 Kraków, Poland
| | - Katarzyna Grychowska
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Str., 30-688 Kraków, Poland
| | - Szczepan Mogilski
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Str., 30-688 Kraków, Poland
| | - Rafał Kurczab
- Maj Institute of Pharmacology, Polish Academy of Sciences, 12 Smętna Str., 31-343 Kraków, Poland
| | - Grzegorz Satała
- Maj Institute of Pharmacology, Polish Academy of Sciences, 12 Smętna Str., 31-343 Kraków, Poland
| | - Ryszard Bugno
- Maj Institute of Pharmacology, Polish Academy of Sciences, 12 Smętna Str., 31-343 Kraków, Poland
| | - Tomasz Kos
- Maj Institute of Pharmacology, Polish Academy of Sciences, 12 Smętna Str., 31-343 Kraków, Poland
| | - Joanna Gołębiowska
- Maj Institute of Pharmacology, Polish Academy of Sciences, 12 Smętna Str., 31-343 Kraków, Poland
| | - Natalia Malikowska-Racia
- Maj Institute of Pharmacology, Polish Academy of Sciences, 12 Smętna Str., 31-343 Kraków, Poland
| | - Agnieszka Nikiforuk
- Maj Institute of Pharmacology, Polish Academy of Sciences, 12 Smętna Str., 31-343 Kraków, Poland
| | - Séverine Chaumont-Dubel
- Institut de Génomique Fonctionelle, Université de Montpellier, CNRS, INSERM, 34094 Montpellier, France
| | - Xavier Bantreil
- IBMM, Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | - Maciej Pawłowski
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Str., 30-688 Kraków, Poland
| | - Jean Martinez
- IBMM, Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | - Gilles Subra
- IBMM, Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | - Frédéric Lamaty
- IBMM, Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | - Philippe Marin
- Institut de Génomique Fonctionelle, Université de Montpellier, CNRS, INSERM, 34094 Montpellier, France
| | - Andrzej J Bojarski
- Maj Institute of Pharmacology, Polish Academy of Sciences, 12 Smętna Str., 31-343 Kraków, Poland
| | - Piotr Popik
- Maj Institute of Pharmacology, Polish Academy of Sciences, 12 Smętna Str., 31-343 Kraków, Poland
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Vales K, Holubova K. Minireview: Animal model of schizophrenia from the perspective of behavioral pharmacology: Effect of treatment on cognitive functions. Neurosci Lett 2021; 761:136098. [PMID: 34224793 DOI: 10.1016/j.neulet.2021.136098] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 06/25/2021] [Accepted: 06/30/2021] [Indexed: 11/19/2022]
Abstract
Schizophrenia is a debilitating mental disorder characterized by positive, negative and cognitive symptoms. Whereas positive symptoms are satisfactorily addressed by current antipsychotic treatment, negative and cognitive symptomatic treatment remains largely ineffective. This review investigates the treatment efficacy regarding cognitive symptoms and evaluates the contribution of different monoamine receptor systems involved in schizophrenia pathophysiology to cognition. In the review, we included preclinical studies assessing the effect of different treatments on cognition in pre-pulse inhibition and two spatial cognitive tests. While pre-pulse inhibition investigates pre-attentive processes operating outside of conscious awareness, the spatial tasks require continuous attention and active engagement in task solving for a successful outcome. The schizophrenia-like phenotype was attained by acute or subchronic administration of non-competitive NMDA receptor antagonist MK-801.
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Affiliation(s)
- K Vales
- The National Institute of Mental Health, Topolová 748, 250 67 Klecany, Czech Republic; Institute of Physiology CAS, Vídeňská 1083, 142 20 Prague, Czech Republic
| | - K Holubova
- The National Institute of Mental Health, Topolová 748, 250 67 Klecany, Czech Republic.
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Tsartsalis S, Tournier BB, Gloria Y, Millet P, Ginovart N. Effect of 5-HT2A receptor antagonism on levels of D2/3 receptor occupancy and adverse behavioral side-effects induced by haloperidol: a SPECT imaging study in the rat. Transl Psychiatry 2021; 11:51. [PMID: 33446643 PMCID: PMC7809418 DOI: 10.1038/s41398-020-01179-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 12/15/2020] [Accepted: 12/16/2020] [Indexed: 12/30/2022] Open
Abstract
Several studies suggested that 5-HT2A receptor (5-HT2AR) blockade may provide a more favorable efficacy and side-effect profile to antipsychotic treatment. We hypothesized that a combined haloperidol (a D2/3 receptor (D2/3R) antagonist) and MDL-100,907 (a 5-HT2AR antagonist) treatment would reverse the side effects and the neurochemical alterations induced by haloperidol alone and would potentialize its efficacy. We thus chronically treated male Mdr1a knock-out rats with several doses of haloperidol alone or in combination with a saturating dose of a MDL-100,907. Receptor occupancy at clinically relevant levels was validated with a dual-radiotracer in-vivo SPECT imaging of D2/3R and 5-HT2AR occupancy. Experimental tests of efficacy (dizocilpine-disrupted prepulse inhibition (PPI) of the startle reflex) and side effects (catalepsy, vacuous chewing movements) were performed. Finally, a second dual-radiotracer in-vivo SPECT scan assessed the neurochemical changes induced by the chronic treatments. Chronic haloperidol failed to reverse PPI disruption induced by dizocilpine, whilst administration of MDL-100,907 along with haloperidol was associated with a reversal of the effect of dizocilpine. Haloperidol at 0.5 mg/kg/day and at 1 mg/kg/day induced catalepsy that was significantly alleviated (by ~50%) by co-treatment with MDL-100,907 but only at 0.5 mg/kg/day dose of haloperidol. Chronic haloperidol treatment, event at doses as low as 0.1 mg/kg/day induced a significant upregulation of the D2/3R in the striatum (by over 40% in the nucleus accumbens and over 20% in the caudate-putamen nuclei), that was not reversed by MDL-100,907. Finally, an upregulation of 5-HT2AR after chronic haloperidol treatment at a moderate dose only (0.25 mg/kg/day) was demonstrated in frontal cortical regions and the ventral tegmental area. Overall, a partial contribution of a 5-HT2AR antagonism to the efficacy and side-effect profile of antipsychotic agents is suggested.
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Affiliation(s)
- Stergios Tsartsalis
- Division of Adult Psychiatry, Department of Psychiatry, Geneva University Hospitals, Geneva, Switzerland. .,Division of Psychiatric Specialties, Department of Psychiatry, Geneva University Hospitals, Geneva, Switzerland.
| | - Benjamin B. Tournier
- grid.150338.c0000 0001 0721 9812Division of Adult Psychiatry, Department of Psychiatry, Geneva University Hospitals, Geneva, Switzerland
| | - Yesica Gloria
- grid.150338.c0000 0001 0721 9812Division of Adult Psychiatry, Department of Psychiatry, Geneva University Hospitals, Geneva, Switzerland
| | - Philippe Millet
- grid.150338.c0000 0001 0721 9812Division of Adult Psychiatry, Department of Psychiatry, Geneva University Hospitals, Geneva, Switzerland ,grid.8591.50000 0001 2322 4988Department of Psychiatry, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Nathalie Ginovart
- grid.8591.50000 0001 2322 4988Department of Psychiatry, Faculty of Medicine, University of Geneva, Geneva, Switzerland ,grid.8591.50000 0001 2322 4988Department of Basic Neurosciences, Faculty of Medicine, University of Geneva, Geneva, Switzerland
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8
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ZFP804A mutant mice display sex-dependent schizophrenia-like behaviors. Mol Psychiatry 2021; 26:2514-2532. [PMID: 33303946 PMCID: PMC8440220 DOI: 10.1038/s41380-020-00972-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 10/20/2020] [Accepted: 11/24/2020] [Indexed: 12/22/2022]
Abstract
Genome-wide association studies uncovered the association of ZNF804A (Zinc-finger protein 804A) with schizophrenia (SZ). In vitro data have indicated that ZNF804A might exert its biological roles by regulating spine and neurite morphogenesis. However, no in vivo data are available for the role of ZNF804A in psychiatric disorders in general, SZ in particular. We generated ZFP804A mutant mice, and they showed deficits in contextual fear and spatial memory. We also observed the sensorimotor gating impairment, as revealed by the prepulse inhibition test, but only in female ZFP804A mutant mice from the age of 6 months. Notably, the PPI difference between the female mutant and control mice was no longer existed with the administration of Clozapine or after the ovariectomy. Hippocampal long-term potentiation was normal in both genders of the mutant mice. Long-term depression was absent in male mutants, but facilitated in the female mutants. Protein levels of hippocampal serotonin-6 receptor and GABAB1 receptor were increased, while those of cortical dopamine 2 receptor were decreased in the female mutants with no obvious changes in the male mutants. Moreover, the spine density was reduced in the cerebral cortex and hippocampus of the mutant mice. Knockdown of ZFP804A impaired the neurite morphogenesis of cortical and hippocampal neurons, while its overexpression enhanced neurite morphogenesis only in the cortical neurons in vitro. Our data collectively support the idea that ZFP804A/ZNF804A plays important roles in the cognitive functions and sensorimotor gating, and its dysfunction may contribute to SZ, particularly in the female patients.
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Cieślik P, Domin H, Chocyk A, Gruca P, Litwa E, Płoska A, Radulska A, Pelikant-Małecka I, Brański P, Kalinowski L, Wierońska JM. Simultaneous activation of mGlu 2 and muscarinic receptors reverses MK-801-induced cognitive decline in rodents. Neuropharmacology 2019; 174:107866. [PMID: 31785263 DOI: 10.1016/j.neuropharm.2019.107866] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 10/09/2019] [Accepted: 11/25/2019] [Indexed: 12/19/2022]
Abstract
The activity of an allosteric agonist of muscarinic M1 receptor, VU0357017, and a positive allosteric modulator (PAM) of M5 receptor, VU0238429, were investigated alone or in combination with the mGlu2 receptor PAM, LY487379 using the following behavioural tests: prepulse inhibition (PPI), novel object recognition (NOR), and spatial delayed alternation (SDA). VU0357017 (10 and 20 mg/kg) and VU0238429 (5 and 10 mg/kg) reversed deficits in PPI while VU0238429 (2.5 and 5 mg/kg) was effective in SDA. The simultaneous administration of subeffective doses of M1 or M5 activators (5, 1, or 0.25 mg/kg) with LY487379 (0.5 mg/kg) induced the same effect as that observed for the active dose of each compound. Selective M1 or M5 receptor blockers antagonized the effect exerted by these combinations, and pharmacokinetic studies confirmed independent transport through the blood-brain barrier. The expression of both receptors (M1 and M5) was established in brain structures involved in cognition (neocortex, hippocampus, and entorhinal cortex) in both the rat and the mouse brains by immunofluorescence staining. Specifically, double neuronal staining of mGlu2-M1 and mGlu2-M5 receptors was observed in many areas of the rat brain, while the number of double-stained mGlu2-M1 receptors was moderate in the mouse brain with no mGlu2-M5 colocalization. Finally, the combined administration of subeffective doses of the compounds did not alter prolactin levels or motor coordination, in contrast to the compounds given alone at the highest dose or in combination with standard neuroleptics.
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Affiliation(s)
- Paulina Cieślik
- Department of Neurobiology, Maj Institute of Pharmacology, Polish Academy of Sciences, 31-343, Kraków, 12 Smetna Street, Poland
| | - Helena Domin
- Department of Neurobiology, Maj Institute of Pharmacology, Polish Academy of Sciences, 31-343, Kraków, 12 Smetna Street, Poland
| | - Agnieszka Chocyk
- Department of Pharmacology, Maj Institute of Pharmacology, Polish Academy of Sciences, 31-343, Kraków, 12 Smetna Street, Poland
| | - Piotr Gruca
- Department of Pharmacology, Maj Institute of Pharmacology, Polish Academy of Sciences, 31-343, Kraków, 12 Smetna Street, Poland
| | - Ewa Litwa
- Department of Pharmacology, Maj Institute of Pharmacology, Polish Academy of Sciences, 31-343, Kraków, 12 Smetna Street, Poland
| | - Agata Płoska
- Department of Medical Laboratory Diagnostics, Medical University of Gdansk, Dębinki 7, 80-211, Gdańsk, Poland; Biobanking and Biomolecular Resources Research Infrastructure Poland (BBMRI.PL), Gdańsk, Poland
| | - Adrianna Radulska
- Department of Medical Laboratory Diagnostics, Medical University of Gdansk, Dębinki 7, 80-211, Gdańsk, Poland; Biobanking and Biomolecular Resources Research Infrastructure Poland (BBMRI.PL), Gdańsk, Poland
| | - Iwona Pelikant-Małecka
- Department of Medical Laboratory Diagnostics, Medical University of Gdansk, Dębinki 7, 80-211, Gdańsk, Poland; Biobanking and Biomolecular Resources Research Infrastructure Poland (BBMRI.PL), Gdańsk, Poland
| | - Piotr Brański
- Department of Neurobiology, Maj Institute of Pharmacology, Polish Academy of Sciences, 31-343, Kraków, 12 Smetna Street, Poland
| | - Leszek Kalinowski
- Department of Medical Laboratory Diagnostics, Medical University of Gdansk, Dębinki 7, 80-211, Gdańsk, Poland; Biobanking and Biomolecular Resources Research Infrastructure Poland (BBMRI.PL), Gdańsk, Poland
| | - Joanna M Wierońska
- Department of Neurobiology, Maj Institute of Pharmacology, Polish Academy of Sciences, 31-343, Kraków, 12 Smetna Street, Poland.
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Ivachtchenko AV, Lavrovsky Y, Okun I. AVN-101: A Multi-Target Drug Candidate for the Treatment of CNS Disorders. J Alzheimers Dis 2018; 53:583-620. [PMID: 27232215 PMCID: PMC4969713 DOI: 10.3233/jad-151146] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Lack of efficacy of many new highly selective and specific drug candidates in treating diseases with poorly understood or complex etiology, as are many of central nervous system (CNS) diseases, encouraged an idea of developing multi-modal (multi-targeted) drugs. In this manuscript, we describe molecular pharmacology, in vitro ADME, pharmacokinetics in animals and humans (part of the Phase I clinical studies), bio-distribution, bioavailability, in vivo efficacy, and safety profile of the multimodal drug candidate, AVN-101. We have carried out development of a next generation drug candidate with a multi-targeted mechanism of action, to treat CNS disorders. AVN-101 is a very potent 5-HT7 receptor antagonist (Ki = 153 pM), with slightly lesser potency toward 5-HT6, 5-HT2A, and 5HT-2C receptors (Ki = 1.2–2.0 nM). AVN-101 also exhibits a rather high affinity toward histamine H1 (Ki = 0.58 nM) and adrenergic α2A, α2B, and α2C (Ki = 0.41–3.6 nM) receptors. AVN-101 shows a good oral bioavailability and facilitated brain-blood barrier permeability, low toxicity, and reasonable efficacy in animal models of CNS diseases. The Phase I clinical study indicates the AVN-101 to be well tolerated when taken orally at doses of up to 20 mg daily. It does not dramatically influence plasma and urine biochemistry, nor does it prolong QT ECG interval, thus indicating low safety concerns. The primary therapeutic area for AVN-101 to be tested in clinical trials would be Alzheimer’s disease. However, due to its anxiolytic and anti-depressive activities, there is a strong rational for it to also be studied in such diseases as general anxiety disorders, depression, schizophrenia, and multiple sclerosis.
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Affiliation(s)
- Alexandre V Ivachtchenko
- Alla Chem LLC, Hallandale Beach, FL, USA.,Avineuro Pharmaceuticals Inc., Hallandale Beach, FL, USA
| | | | - Ilya Okun
- Avineuro Pharmaceuticals Inc., Hallandale Beach, FL, USA
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Jeon SJ, Kim E, Lee JS, Oh HK, Zhang J, Kwon Y, Jang DS, Ryu JH. Maslinic acid ameliorates NMDA receptor blockade-induced schizophrenia-like behaviors in mice. Neuropharmacology 2017; 126:168-178. [DOI: 10.1016/j.neuropharm.2017.09.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Revised: 09/07/2017] [Accepted: 09/08/2017] [Indexed: 10/18/2022]
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de Oliveira RP, Nagaishi KY, Barbosa Silva RC. Atypical antipsychotic clozapine reversed deficit on prepulse inhibition of the acoustic startle reflex produced by microinjection of DOI into the inferior colliculus in rats. Behav Brain Res 2017; 325:72-78. [DOI: 10.1016/j.bbr.2017.01.053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 01/20/2017] [Accepted: 01/25/2017] [Indexed: 01/23/2023]
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13
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Morozova M, Burminskiy D, Rupchev G, Lepilkina T, Potanin S, Beniashvili A, Lavrovsky Y, Vostokova N, Ivaschenko A. 5-HT6 Receptor Antagonist as an Adjunct Treatment Targeting Residual Symptoms in Patients With Schizophrenia: Unexpected Sex-Related Effects (Double-Blind Placebo-Controlled Trial). J Clin Psychopharmacol 2017; 37:169-175. [PMID: 28141622 DOI: 10.1097/jcp.0000000000000673] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Treating patients who experience residual psychotic symptoms during remission of schizophrenia remains one of the most challenging problems. The mechanisms underlying these symptoms differ from those of acute hallucinations and delusions. 5-HT6 receptor antagonists have been considered promising agents in treatment of residual psychotic symptoms and cognitive dysfunction. The aim of the study was to assess the efficacy of a selective 5-HT6 inhibitor Avisetron in the reduction of residual psychotic symptoms in patients with schizophrenia on stable antipsychotic therapy. METHODS Eighty clinically stable outpatient subjects with schizophrenia with residual psychotic symptoms were randomized in a double-blind manner to 6 weeks of Avisetron or placebo at 1:1 ratio. Subjects received 8 mg of Avisetron or placebo on top their stable antipsychotic treatment. Standard clinical scales and cognitive tests were used for endpoint assessment. The primary efficacy endpoint was the mean reduction of total Positive and Negative Syndrome Scale score after 6 weeks of treatment. RESULTS No significant differences in the primary and secondary endpoints were found between the groups. However, based on the subgroup analysis, the significant improvement of total Positive and Negative Syndrome Scale score and residual psychotic symptoms was observed in female patients. CONCLUSIONS It was a negative study with unexpected benefits of the drug only in females. We hypothesized that the role of patients' sex can impact the treatment response to serotonergic drugs in general. We suggest a possible synergistic interaction between estrogen and Avisetron by means of modulating the effect of estrogens on the serotonergic system. Future studies targeting the sex-related effects of serotonergic drugs are warranted.
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Affiliation(s)
- Margarita Morozova
- From the *Mental Health Research Center, Moscow, Russia; †R-Pharm Overseas, Inc, San Diego, CA; ‡IPHARMA LLC (ChemRar/ChemDiv group), Moscow, Russia; §ChemDiv, San-Diego, CA
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Differential effects of antipsychotic and propsychotic drugs on prepulse inhibition and locomotor activity in Roman high- (RHA) and low-avoidance (RLA) rats. Psychopharmacology (Berl) 2017; 234:957-975. [PMID: 28154892 PMCID: PMC5492384 DOI: 10.1007/s00213-017-4534-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Accepted: 01/09/2017] [Indexed: 10/20/2022]
Abstract
RATIONALE Animal models with predictive and construct validity are necessary for developing novel and efficient therapeutics for psychiatric disorders. OBJECTIVES We have carried out a pharmacological characterization of the Roman high- (RHA-I) and low-avoidance (RLA-I) rat strains with different acutely administered propsychotic (DOI, MK-801) and antipsychotic drugs (haloperidol, clozapine), as well as apomorphine, on prepulse inhibition (PPI) of startle and locomotor activity (activity cages). RESULTS RHA-I rats display a consistent deficit of PPI compared with RLA-I rats. The typical antipsychotic haloperidol (dopamine D2 receptor antagonist) reversed the PPI deficit characteristic of RHA-I rats (in particular at 65 and 70 dB prepulse intensities) and reduced locomotion in both strains. The atypical antipsychotic clozapine (serotonin/dopamine receptor antagonist) did not affect PPI in either strain, but decreased locomotion in a dose-dependent manner in both rat strains. The mixed dopamine D1/D2 agonist, apomorphine, at the dose of 0.05 mg/kg, decreased PPI in RHA-I, but not RLA-I rats. The hallucinogen drug DOI (5-HT2A agonist; 0.1-1.0 mg/kg) disrupted PPI in RLA-I rats in a dose-dependent manner at the 70 dB prepulse intensity, while in RHA-I rats, only the 0.5 mg/kg dose impaired PPI at the 80 dB prepulse intensity. DOI slightly decreased locomotion in both strains. Finally, clozapine attenuated the PPI impairment induced by the NMDA receptor antagonist MK-801 only in RLA-I rats. CONCLUSIONS These results add experimental evidence to the view that RHA-I rats represent a model with predictive and construct validity of some dopamine and 5-HT2A receptor-related features of schizophrenia.
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Potasiewicz A, Nikiforuk A, Hołuj M, Popik P. Stimulation of nicotinic acetylcholine alpha7 receptors rescue schizophrenia-like cognitive impairments in rats. J Psychopharmacol 2017; 31:260-271. [PMID: 28168926 DOI: 10.1177/0269881116675509] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Alpha7 nicotinic acetylcholine receptor (α7 nAChR) dysfunction plays an important role in schizophrenia. Positive allosteric modulators of α7 nAChR have emerged as a promising therapeutic approach to manage cognitive deficits that are inadequately treated in schizophrenic patients. The aim of the present study was to evaluate the ability of type I (CCMI) and type II (PNU120596) α7 nAChR positive allosteric modulators to counteract MK-801-induced cognitive and sensorimotor gating deficits. The activity of these compounds was compared with the action of the α7 nAChR agonist A582941. CCMI, PNU120596 and A582941 reversed the sensorimotor gating impairment evoked by MK-801 based on the prepulse inhibition of the startle response. Additionally, no MK-801-evoked working memory deficits were observed with α7 nAChR ligand pretreatment as assessed in a discrete paired-trial delayed alternation task. However, these compounds did not affect the rats' attentional performances in the five-choice serial reaction time test. The α7 nAChR agents demonstrated a beneficial effect on sensorimotor gating and some aspects of cognition tested in a rat model of schizophrenia. Therefore, these results support the use of α7 nAChR positive allosteric modulators as a potential treatment strategy in schizophrenia.
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Affiliation(s)
- Agnieszka Potasiewicz
- 1 Department of Behavioural Neuroscience and Drug Development, Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Agnieszka Nikiforuk
- 1 Department of Behavioural Neuroscience and Drug Development, Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Małgorzata Hołuj
- 1 Department of Behavioural Neuroscience and Drug Development, Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Piotr Popik
- 1 Department of Behavioural Neuroscience and Drug Development, Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland.,2 Faculty of Health Sciences, Jagiellonian University Medical College, Krakow, Poland
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Staroń J, Warszycki D, Kurczab R, Satała G, Bugno R, Hogendorf A, Bojarski AJ. Halogen bonding enhances activity in a series of dual 5-HT6/D2 ligands designed in a hybrid bioisostere generation/virtual screening protocol. RSC Adv 2016. [DOI: 10.1039/c6ra08714k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A hybrid bioisostere generation/virtual screening method combined with narrowing of chemical space through similarity to compounds that are active at the second target was successfully applied for the development of dual 5-HT6/D2 receptor ligands.
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Affiliation(s)
- Jakub Staroń
- Department of Medicinal Chemistry
- Institute of Pharmacology Polish Academy of Sciences
- 31-343 Kraków
- Poland
| | - Dawid Warszycki
- Department of Medicinal Chemistry
- Institute of Pharmacology Polish Academy of Sciences
- 31-343 Kraków
- Poland
| | - Rafał Kurczab
- Department of Medicinal Chemistry
- Institute of Pharmacology Polish Academy of Sciences
- 31-343 Kraków
- Poland
| | - Grzegorz Satała
- Department of Medicinal Chemistry
- Institute of Pharmacology Polish Academy of Sciences
- 31-343 Kraków
- Poland
| | - Ryszard Bugno
- Department of Medicinal Chemistry
- Institute of Pharmacology Polish Academy of Sciences
- 31-343 Kraków
- Poland
| | - Adam Hogendorf
- Department of Medicinal Chemistry
- Institute of Pharmacology Polish Academy of Sciences
- 31-343 Kraków
- Poland
| | - Andrzej J. Bojarski
- Department of Medicinal Chemistry
- Institute of Pharmacology Polish Academy of Sciences
- 31-343 Kraków
- Poland
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Purification and biological evaluation of radioiodinated clozapine as possible brain imaging agent. J Radioanal Nucl Chem 2015. [DOI: 10.1007/s10967-014-3894-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Abraham R, Nirogi R, Shinde A, Irupannanavar S. Low-dose prazosin in combination with 5-HT6 antagonist PRX-07034 has antipsychotic effects. Can J Physiol Pharmacol 2015; 93:13-21. [DOI: 10.1139/cjpp-2014-0254] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
An extensive amount of research has focused on the development of new pharmacological agents to treat schizophrenia. Varying from person to person, schizophrenia is a heterogeneous disease with symptoms of positive, negative, and cognitive deficits. PRX-07034, a 5-hydroxytryptamine6 (5-HT6) receptor antagonist has been evaluated for its potential in treating obesity and cognitive deficits. This study evaluated PRX-07034 (0.1, 0.3, and 1.0 mg/kg body mass, by intraperitoneal (i.p.) injection), in combination with a low dose of prazosin (0.3 mg/kg, i.p.), for its antipsychotic potential. The research utilized a stereotypy assay, an open field test, an object recognition task, and prepulse inhibition. Dizocilpine, a non-competitive N-methyl-d-aspartate (NMDA) antagonist, was also administered in the above-mentioned assays as a psychomimetic. The combination of PRX-07034 and prazosin alleviated stereotypy and hyperlocomotor activity while enhancing memory in an object recognition task, and reversed sensory-gating deficits induced by dizocilpine. Examination of the medial prefrontal cortex revealed that a combination of PRX-07034 and prazosin reduced the dizocilpine-mediated increase of 5-HT. These results suggest that the combination of a 5-HT6 antagonist with low doses of prazosin could have therapeutic potential in the treatment of schizophrenia.
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Affiliation(s)
- Renny Abraham
- Discovery Research, Suven Life Sciences, Ltd., Serene Chambers, Road No. 5, Avenue 7, Banjara Hills, Hyderabad 500 055, India
- Department of Pharmaceutical Sciences, Jawaharlal Nehru Technological University, Hyderabad, Kukatpally, Hyderabad 500 085, India
| | - Ramakrishna Nirogi
- Discovery Research, Suven Life Sciences, Ltd., Serene Chambers, Road No. 5, Avenue 7, Banjara Hills, Hyderabad 500 055, India
| | - Anil Shinde
- Discovery Research, Suven Life Sciences, Ltd., Serene Chambers, Road No. 5, Avenue 7, Banjara Hills, Hyderabad 500 055, India
| | - Shantaveer Irupannanavar
- Discovery Research, Suven Life Sciences, Ltd., Serene Chambers, Road No. 5, Avenue 7, Banjara Hills, Hyderabad 500 055, India
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Popik P, Holuj M, Nikiforuk A, Kos T, Trullas R, Skolnick P. 1-aminocyclopropanecarboxylic acid (ACPC) produces procognitive but not antipsychotic-like effects in rats. Psychopharmacology (Berl) 2015; 232:1025-38. [PMID: 25260339 PMCID: PMC4336651 DOI: 10.1007/s00213-014-3738-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Accepted: 08/29/2014] [Indexed: 12/31/2022]
Abstract
RATIONALE In addition to the negative and positive symptoms of schizophrenia, cognitive deficits, including prefrontal cortical dysfunction, are now recognized as core features of this disorder. Compounds increasing the NMDA receptor function via the strychnine-insensitive glycine receptors have been proposed as potential antipsychotics. Depending on the ambient concentrations of glutamate and glycine, 1-aminocyclopropanecarboxylic acid (ACPC) behaves as either a partial agonist or a functional antagonist at the strychnine-insensitive glycine receptors. OBJECTIVES We investigated the procognitive and antipsychotic-like effects of ACPC in rats treated with phencyclidine (PCP) or ketamine (KET), compounds that produce psychotic-like symptoms in humans and laboratory animals. METHODS Cognitive effects were investigated in the novel object recognition (NOR) and attentional set-shifting tests (ASST). In addition, the effects of ACPC were investigated in PCP-induced hyperactivity, conditioned avoidance response (CAR), and prepulse inhibition (PPI) tests. The effects on attention and impulsivity were measured in the five-choice serial reaction time task (5-CSRTT). RESULTS ACPC (200-400 mg/kg) inhibited memory fading in naive rats and like clozapine prevented PCP- and KET-induced amnesia in the NOR. In naive animals, ACPC at 400 but not 200 mg/kg enhanced cognitive flexibility in the ASST, as the animals required fewer trials to reach the criteria during the extra-dimensional phase. In contrast, ACPC did not affect PCP-induced hyperactivity, CAR, and PPI as well as attention and impulsivity in the 5-CSRTT. CONCLUSION The present study demonstrates that ACPC enhanced both object recognition memory and cognitive flexibility dependent on the prefrontal cortex, but did not affect impulsivity nor exhibit an antipsychotic-like profile.
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Affiliation(s)
- Piotr Popik
- Behavioral Neuroscience and Drug Development, Institute of Pharmacology, Polish Academy of Sciences, 12 Smetna Street, 31-343, Kraków, Poland,
| | - Malgorzata Holuj
- Behavioral Neuroscience and Drug Development, Institute of Pharmacology, Polish Academy of Sciences, 12 Smetna Street, 31-343 Kraków, Poland
| | - Agnieszka Nikiforuk
- Behavioral Neuroscience and Drug Development, Institute of Pharmacology, Polish Academy of Sciences, 12 Smetna Street, 31-343 Kraków, Poland
| | - Tomasz Kos
- Behavioral Neuroscience and Drug Development, Institute of Pharmacology, Polish Academy of Sciences, 12 Smetna Street, 31-343 Kraków, Poland
| | - Ramon Trullas
- Institut d’Investigacions Biomèdiques August Pi i Sunyer, IDIBAPS-CSIC, 08036 Barcelona, Spain
| | - Phil Skolnick
- Division of Pharmacotherapies & Medical Consequences of Drug Abuse, NIDA, NIH, Bethesda, MD 20892-9551 USA
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